What does the world of science say in our discussion about our level of intelligence?

It was thought that the level of intelligence increased with the development of technology, health standards and improvement of nutrition opportunities. But the research carried out by the Ragnar Frisch Economic Research Center in Norway has reversed the situation. Bernt Bratsberg and Ole Rogeberg, who took part in the research team, mentioned this issue in the National Academy of Sciences Proceedings and stated that people's IQ test scores have been on the decline with the slow acceleration in the last few decades.
Data of 39 years were examined
Norwegian scientists, the intellectual ability of people began to decline in the disclosure of the world's agenda is discussed as a study material for this research, the 1970- 2009 IQ-test results of the Norwegian conscripts used in the military announced. The total number of test results was 730 thousand.

The increase in IQ observed during the first half of the twentieth century was known as the Flynn effect. Many dissertations were proposed to explain this phenomenon. Theoretically, the factors affecting the esi increase in intelligence levels i of people have been shown to improve nutrition, health and education.
When we got electronic devices, our intelligence score dropped
According to calculations, the level of intelligence decreases by 7 points per average generation. It is stated that the decline in IQ may be related to the changes in the lifestyle of the people, in part because of the environmental factors. It is also among the results of this research that it may cause such a decline rather than reading books.
According to research, fish consumption plays a key role in increasing and decreasing the level of IQ
It is explained that children who eat between 7 and 9 years old at least once a week have an average of 5 points higher than those who have less fish consumption. It is undeniable that various factors such as education status, occupation and marital status of the families of the children participated in the research are considered to be the results, but that these factors are not as effective as fish. We need to take fish eating advice more seriously. Maybe it's the fish lobby.
University of Vienna disagrees with Norwegian scientists

The results of this pessimistic research by Norwegian scientists are not attended by psychologists at the University of Vienna. According to them, there is no decrease in the level of intelligence, but the increase continues. According to recent research by psychologists, people's IQ level increases by three points per decade. Martin Voracek and Jakob Pietschning, who explained the results of a study in Perspectives on Psycological Science, compared the intelligence test results with participation of more than 4 million people in 31 countries over a hundred-year period, and the attitudes of the test participants revealed that the results improved over time. According to this, the children born 50 years ago are not able to solve the same problems as the children who are born today. Here are the main factors; health, nutrition and technology. It is emphasized that the link between this triangle and environmental factors should not be overlooked.
The role of environmental factors
Pietschning at the University of Vienna draws attention to the role of environmental impacts. Especially the development of nutrition and health services supports the increase. However, it is not only a warning for this situation, but also for the obesity threat.
Geographical Difference
IQ level is changing from geography to geography.
Flynn effect
Flynn's effect is that the IQ scores, which were initially found by James Flynn, increased over time and increased in the general population with a certain level of stability. The mean IQ scores of each generation increase steadily. Although IQ scores are not exact figures, this increase is observed when compared to the general population. Thus, the average IQ score is 100 and it always shows the same number of correct answers according to the rest of the population.
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